Avoid attempting to use a DOM node as an element (#10480)

Change-Id: I05023392ebe99635ebe1700b14e84a317f4d6cb8

diff --git a/client/src/com/vaadin/client/ui/dd/VDragAndDropManager.java b/client/src/com/vaadin/client/ui/dd/VDragAndDropManager.java
index ae14218fff34aec5086510764cb68122482a4d4b..ac1ae72877e19a71f8d7371a6f554ed7d1286a8c 100644 (file)
--- a/client/src/com/vaadin/client/ui/dd/VDragAndDropManager.java
+++ b/client/src/com/vaadin/client/ui/dd/VDragAndDropManager.java
@@ -84,7 +84,14 @@ public class VDragAndDropManager {
             currentDrag.setCurrentGwtEvent(nativeEvent);
             updateDragImagePosition();
 
-            Element targetElement = Element.as(nativeEvent.getEventTarget());
+            Node targetNode = Node.as(nativeEvent.getEventTarget());
+            Element targetElement;
+            if (Element.is(targetNode)) {
+                targetElement = Element.as(targetNode);
+            } else {
+                targetElement = targetNode.getParentElement();
+            }
+
             if (Util.isTouchEvent(nativeEvent)
                     || (dragElement != null && dragElement
                             .isOrHasChild(targetElement))) {